lfredg

I have a Massimo t-boss 410 in shop will not start with injector installed, have to hold above hole to get to start , if unplug tps it will run if map sensor is out. replaced ecu, map,and injector. Still no run, pulled the valve out of throttle body it runs high idle to an idle if out a 1/4 inch, still have hold injecter out to start, but with the valve thing out you can install map and injector for it to run. what do I need to do.